Electrical system.



H. WULFF.

ELECTRICAL SYSTEM.

APPLICATION FILED AUG.30. I916.

1 ,241,460. Patented Sept. 25, 1917.

2 SHETS-SHEET 1.

E144 Jawto'a Q Vi't n (mow H. WULFF.

ELECTRICAL SYSTEM.

APPLICATION mzo AUG. 30. 1916.

1 ,24 1 ,460 Patented Sept. 25, 1917.

2 SHEETSSHEET 2.

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UNITED STATES PATENT ()FFFIGE.

HENRY WULFF, O1? GRAFTON, WISCONSIN.

ELECTElCAL SYSTEM.

To all whom it may concern:

Be it known that I HENRY lV LFr, a citizen of the United States, residing at Grafton in the county of Ozaukee and State of il isconsin, have invented new and useful Improvements in Electrical Systems of which the following is a specification.

This invention relates to an electrical system by means of'which the ignition system of an internal combustion engine may be interrupted upon the engine performing the necessary amount of work.

The invention has for its primary object to accomplish the foregoing result with the; minimum number of parts and in such a manner that wastage of current is pre vented. I

An object of the invention .is the novel manner of constructing a circuit breaker and associating the same with the circuits in such a manner that all of the circuits will be simultaneously broken when the prime mover such as the gas engine has performed its duties. I

Besides the above my invention is distinguished in the manner of constructing the circuit breaker so as to properly associate the main movable element thereof with the armature of an electric magnet.

With these and other objects in view the invention will be better understood from the following detailed description taken in connection with the accompanying drawings, wherein Figure 1 is a diagrammatic view of the entire system.

Fig. 2 is a top plan view of the circuit breaker.

Fig. 3 is a longitudinal sectional view thereof.

J part of my invention.

Fig. 4 is a side elevation of the circuit breaker.

Fig. 5 is a cross sectional view.

Fig. 6 is a view similar to Fig. 4 showing the parts in circuit breaking position.

Fig. 7 is a vertical sectional view through the float controlled circuit closer.

Referring to the drawings the numeral 1 designates a circuit breaker composing one This circuit breaker consists of a base 2 having one extremity 3 bent to be secured but insulated from a contact strip 4. This contact strip 4 supports a pair of binding posts 4 and 5, while the base supports directly below the contact Specification of Letters Patent.

Patented Sept. 25, 191'7.

strip 4 a binding post 6. The ren'laining end of the base is bent at right angles to form an abutment for adjusting means to be described later. Slidably mounted upon the base is a plate 8 having a pair of upstanding ears 9 arranged adjacent one end, while a similar pair of ears 10 are bent up from the remaining end of the plate.

Pivotally supported by the ears 10 and guided between the ears 9 is a lever 11, the end of which adjacent the contact strip 4 has secured thereto a resilient contact strip 12 adapted to engage the undersurface of the strip 4. Secured to the under surface of the lever 11 is an inclined block 13. the inclined surface of which is arranged to engage an armature 14 when the latter is in itsnormal position. The armature 14 and block 13 are so related that under normal conditions, the engagement between the two will cause the contact strips 4 and 12 to engage.

For the purpose of insuring the proper relation between the block 13 and armature 14. I provide an adjusting means 15 consisting of a bolt 16 mounted in the end 17of the base and passing between the ears 10 so as to be engaged by a nut 17. Encircling the bolt and abutting the ears 10 and extremity T is a coil spring 18.

As far as I have proceeded it will be seen that when the magnet19 that controls the armature 14 is energized. the armature will move to a position out of the influence of the block 13 with the result that the lever 11 will gravitate to a position to break engagement between the contact strips.

The float controlled circuit closer 20, an other part of my system consists of a casing 21 supporting a pair of binding posts 22 and 23. one of which the binding post 23, is insulated from the casing. Secured to the binding post 22 is a resilient strip 24 of a length great enough to engage a portion of the binding post 23 when moved in a lateral direction. For the purpose of giving the proper movement to the strip 24, I provide a float 25 having, a stem 26 passing through the casing in a direction to engage the strip 24 when the float 25 has been elevated to a PIQClBtElInlIlBCl distance.

Referring more particularly to Fig. 1 of the drawings, it will be seen that the float controlled circuit closer controls the closing of a relay circuit 27 that includes a relay 28 and a source of current 29. The terminals of the circuit are connected respectively to the binding post 4' and the binding post 5, and thus it will be seen that the base 2 and lever 11 form a portion of the path for the current from the source 29. The armature 30 of the relay 28 is arranged to bridge the break 31 in a control circuit 32 that includes a source of current 33 and the electromagnet 19 heretofore mentioned. The terminals of this circuit are connected respectively to the binding post 5 and the binding post 6. The ignition system is indicated at 35.

From the foregoing description it will be seen that upon energization of the magnet 19 which takes place when the float has been elevated a predetermined distance, the armature 14 will be attracted with the result that the lever 11 gravitates to a position so as to move the contact strip 12 away from the contact strip 4. When this action takes place, further passage of current is prevented as all of the circuits are broken as is obvious in Fig. 1 of the drawings, and hence when the tank which holds the float 25 is sufliciently supplied with water the pumping of the engine is interrupted.

It should be apparent from the foregoing description that I provide a system which is admirably adapted for the purpose for which it is intended and which is simple, durable and eflicient of construction and may be manufactured and sold at a comparatively low cost.

What I claim is:

1. A. system of the class described comprising a normally open circuit including a source of current and a relay, means including a float for closing said circuit, and an ignition system having its primary circuit normally closed, and means for sumultaneously breaking both of said circuits upon current flow through said first circuit.

2. A circuit breaker comprising a base shaped to have an overhanging extremity, a plate slidably mounted upon and insulated from said base, a lever having one end pivotally supported by said plate, a relay the armature of which is adapted when in one position to hold one end of said lever in engagement with the overhanging extremity.

8. A circuit breaker comprising a base shaped to have an overhanging extremity, a plate slidably mounted on the base, but insulated therefrom, a lever having one end pivotally connected to said plate and its other end arranged to enga e said overhanging, extremity, a block carried by said lever, a relay having its armature arranged under said block' for holding the adjacent extremity of the lever in engagement with said overhanging extremity when the armature is in one position and adjustable means for giving movement to said lever for varying the relative positions of said block and armature.

ature. FF.

copies of this patent may be obtained for five cents each, by addressing the "commissioner of Petentl, Washington, D. C. 

